Chain



Aug. 5, 1924. 1,503,774

A. P. STIANSEN CHAIN Filed Dec. 12. 1921' INVENTOR;

Patented Aug. 5, 1924.

ANTON PETER sTiANsEN, or BROOKLYN, New YORK.

CHAIN.

Application filed December 12, 1921. Serial No. 521,881.

To all whom it may concern.

Be it known that I, ANTON PETER STIAN- snN, a citizen of the-United States, residing in the borough of Brooklyn, in the county of Kings, city and State of N ewYork, have invented a certain Improvement in Chains,

of 'which'rthe followingis a specification, such as will enable those skilled in thefart to which it appertains to make and use the same. I r

This invention relates to chains, especially multiple strand chains, and particularly driving chains and more particularly to silent or angular-toothed chains. 7

An object of this invention'is to increase the effective bearing area of the links comprising the chain; another object is to reduce the number of varied parts of which the chain is composed; another object is to provide a chain that can readily be assembled. Other objects will appear hereafter inthe specifications and in the claims, discernible to those skilled in the art.

I attain these objects-by the constructionillustrated in the accompanying drawings, in which Figure 1 is a side view of a part of a gear or sprocket wheel having a piece of my improved drive chain mounted thereon and part of which is in section, the section being ou line C-C of Fig. 2;

Fig. 2 a horizontal sectional view of a part of the chain extended andshowing section on the lines, HH of Fig. 4, K-K of Fig.

6, and LL of Fig. 8;

Fig. 3 a transverse section on the line A-A ofFlgs; 1 and 2;

Fig. 4 a side view of one of the links of which the chain is composed;

Fig. 5 a section on the line D-D of Fig. 4;

Fig. 6 a side-viewof a side link which I may employ;

Fig. '7 a section on the line E-E of Fig. 6;

Fig. 8 a side view of one of the washer plates used in the construction of the chain;

Fig. 9 a section on the line GG of Fi 8.

imilar numerals refer to similar parts throughout the several views.

5 is a part of a gear or sprocket thatv may be used with my chain.

The chain 6 is composed of links 1 and 2 and washer plates 3 shown detached in Figs. 4 and 5, 6 and 7, 8 and 9 respectively.

Link 1 is a flat plate consisting of a body portion the; opposite ends thereofiforming angular teeth I on which. the teethof the gear operate as shown in Fig. 1, theopposite ends of said body portion are also provided with cavities 1 protrusions 1 and apertures 1?,which constitute the journals or bearings on which said link 1 pivots.

"LinkQ is alia't plate consisting of abody portion the contour of the edges thereof being substantially the same as those of link 1, and the opposite ends of said body portion having apertures 2 on which said link 2 pivots when assembled on the protrusions 1 of link 1.

Washer plate 3 is a flat plate consisting. of a body portion the contour of the upper edge and opposite ends thereof being substantially the sameas those of links 1 and 2, the contour of the lower edge of said body portion having notches 3 and lip 3, said trated in Figs. 1, 2 and 3 which show the chain composed mainly of links 1. The cavities 1 and protrusions 1 on said link interlocking transversely with the adjoining links and pin 4 passed through the pin-holes 1 which said links are provided with in their opposite ends; said cavities and protrusions and said pin holes and pins having bearin on each other res )ectivel when the i chain is in tension and providing pivotal bearings for the chain when in motion.

The link 2 Imay employ on one side of the chain to fill in the space between link 1 and washer plate 3 thereby increasing the strength of the chain its bearing area and tooth area. 7

Transversely the links are held between the washer plates 3 which in turn are. held between the rivet head 4: and shoulder i on pin a, said washer plates 3 being spaced sufliciently apart to permit free pivotal movement of the links.

Lip 3* on washer plate 3 is bent outwardly from the chain as shown in Fig. 3 so as to better guide the chain when entering on the sprocket.

In the accompanying drawings I have shown the cavities 1 and protrusions l cylindrical but I do not bind myself to this particular shape and I may vary either or both.

I do not bind myself to any particular manner of making the links; I may form them by die-casting, or by drop-forging or from sheet metal stamping, or in any other desired manner.

Having fully described my invention what I claim as new and desire to secure by Letters Patent, is V V 1. A chain composed of links 1 and 2,

washer plates 3 and pins 4, said links 1 having pin holes 1' through which said pins 4 are passed, said links 1 being also provided with cavities 1 and protrusions 1 that interlock with similar cavities and protrusions on the adjoining and cooperating links, said links 2 serving as a side link and being provided with apertures 2, said apertures serving as bearings for the protrusions 1 onthe adjoining links 1, said links 1 and 2 being also provided in their opposite ends with toothed portions 1 and 2 respectively,

on which the teethof the sprocket operate,

and said links being held transversely by said washer plates 3 and said pins 4; substantially asspecified.

2. A power device comprising a gear and a drive chain mounted thereon and composed oflinks land 2, links -1consisting of body portions having pin holes in their opposite ends, and pins passed through said holes, the body portions of said links being, provided around said pin holes with interlock- Ii ing cavities and protrusions, links 2 consisting of flat body portions having substantially similar contours as links 1 and provided in their opposite EDClSVVlth apertures, 7

said apertures serving as bearings for said protrusions on the adjoining links 1, said consisting of fiat body portions having substantially similar contours as links 1 and provided in their, opposite ends with apertures, said apertures serving as bearings for said protrusions on links 1, said body portions on links land 2 being also provided in their opposite ends with toothed portions on which the teeth of the gear operate.

4. A power device comprising a gear and a drive chain mounted thereon, said chain being composed of links consisting of fiat body portions having pin holes in, their opposite ends, and pins passed through said holes, the'body portion of said links being provided around said holes with interlocking cavities and protrusions, said cavities having adepth less than the thickness of said body,

portion, said body portion of said links being also provided in their opposite ends with toothed portion on which the teeth of the gearoperate. 7. I

5. In a chain link having a toothed portion in the opposite ends thereof that is adaptable for contact with a toothed wheel or sprocket, a pivot bearing consisting of a lateral protrusion on the side of the link that is the effect of a lateral indentation on the opposite side thereof, said indentation having, a depth less than thethickness of the link. 7 1

6. In a'chain link having a toothed portion in the opposite ends thereof that is adaptable for contact with a toothed wheel or sprocket, a pivot bearing consisting of a lateral protrusion on the side of the link that is the effect of a lateral, indentation on the opposite side thereof, said indentation having a depth less than the thickness of the link and said protrusion being adaptable to pivot within the saidindentation in an adjacent and cooperating link;

7. In a chain link having 'a toothed portion in the opposite ends thereof that is adaptable for contact with a toothed wheel or sprocket, a pivot bearing consisting of an apertured protrusion on the side of the link and a substantially corresponding indentation on the opposite side thereofisaid indentation having a depth less than the thickness of the link. V

ANTON PETER STIANSENL 

